الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
The aim of this in-vitro study was to evaluate the effect of artificial aging (storage in artificial saliva and thermocycling) on the microleakage of new CAD/CAM provisional crown system VITA CAD-Temp in comparison with currently used bis-acrylic Protemp 4 luted with different non eugenol provisional cements namely:
1- Non resin based cement Temp Bond NE.
2- Resin based cement Temp Bond Clear.